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Project 1993 ZZR-250

Discussion in 'Your 250cc Projects' started by Murdo, Aug 17, 2016.

  1. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    My Bike:
    1937 Royal Enfield 250, CF Moto 250 V5, Honda's XL250, CBR250, FT500 plus a few others.
    Picked this up today while I was out with ute and trailer.
    Plated 1993. Has two lots of fairings in average condition, generally reasonable condition but only have the cylinder head (disassembled) and carbs of the engine.
    Any suggestions on what to do with it? ('Taking to the tip' will be treated with the disstain it deserves, ie ignored.) I had thought about fitting something like a KX500 two stroke to give it a bit of go. What do you recon?
    Honda CBR250R 008.JPG Honda CBR250R 007.JPG Honda CBR250R 011.JPG
     
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  2. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    How bout a fizzer engine? :D
     
  3. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    Hmmm. Have you got a good one? :p
     
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  4. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    Talk to the gatekeeper of the fizzer factory ;)
     
  5. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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  6. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    Thanks Linkin. I haven't really had a good look at it yet. Was thinking about a KX450 engine I know of sitting in a Go-Kart. Now that would make a snappy little track bike.
     
  7. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    My Bike:
    1937 Royal Enfield 250, CF Moto 250 V5, Honda's XL250, CBR250, FT500 plus a few others.
    Well, after a trip to the coast yesterday I arrived home with this 1998 model and several boxes of bits. Most of it seems usable or repairable.
    RE wend & ZZR250 begins 021.JPG RE wend & ZZR250 begins 022.JPG
    RE wend & ZZR250 begins 023.JPG
    RE wend & ZZR250 begins 026.JPG
    The story from the PO is that he had the bike for a while, engine died so he bought a second hand engine from a wrecker in Melbourne and fitted it but could not get it to start and lost interest. Looking closely at it there was a lot of disconnected wires, so maybe he had no spark. Will give the whole thing a good clean up and service and see what happens. Plan is to put this one back on the road and use the spare bits (plus a bit of cash no doubt) to finish the first one (1993 model).
    Got it stripped today so I can get in and give everything a good clean.
    RE wend & ZZR250 begins 025.JPG
    These are the rockers from the original engine. Has anyone seen this happen to these before? Wanna guess how it happened? Top left is a good one, top right has been without oil and chewed by the camshaft, bottom ones just broken without chewing.
    RE wend & ZZR250 begins 024.JPG
     
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  8. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    KX500 - HELL YEAH!! now that's a big single conversion worth considering, or if they weren't rarer than hens teeth RZ350 donk
     
  9. Joker

    Joker See "about me" for contact details. Contributing Member

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    It happened because the engine was subjected to some idiot.
     
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  10. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    Can you elaborate on this, enquiring minds want to know :prankster:
     
  11. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    Actually here's a proposition, cams mistimed by 180 degrees, valves go slam, bits go bang, whaddayreckon??
     
  12. Joker

    Joker See "about me" for contact details. Contributing Member

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    I was more thinking...

    "Check this bro I'm gonna make this thing ping like $#!t it will go f#$^&g awesome, I just gotta advance the timing by like 180 degrees and I'll get 25hp man... beat the s#!t out of all those WRX's dude aye!"
     
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  13. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    AAH yes a well tuned idiot at the controls
     
  14. kiffsta

    kiffsta Senior Member

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    ride this one to Texas ?
     
  15. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    Even less chance than the VT.:lolsign:
     
  16. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    Good score murdo, I thought you might make the trip to grafton for that price :thumb_ups:
     
  17. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    My Bike:
    1937 Royal Enfield 250, CF Moto 250 V5, Honda's XL250, CBR250, FT500 plus a few others.
    So, the bike from Grafton had very low compression which I guess is why it would not run. I had ordered new std rings for the 93 bike, so today I pulled the engine out and stripped it down to find the rings stuck in the pistons.
    enfield plus others 057.JPG
    They took a bit of getting out and when measured I found they were .003" thicker than the rings I had bought. I cleaned the grooves out (back of Stanley knife blade) and used the rings I had bought. These gave .0015" clearance and fitted nicely with the end gap good too. Bought a can of the copper gasket spray, will see how it goes.
    enfield plus others 058.JPG
    Engine back together.
    enfield plus others 063.JPG
    And back in frame.
    enfield plus others 064.JPG
     
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  18. cantafforda600

    cantafforda600 can actually afford a 600 Premium Member

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    nice. i had a 1994. great bike.
     
  19. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    1937 Royal Enfield 250, CF Moto 250 V5, Honda's XL250, CBR250, FT500 plus a few others.
    Got a couple of hours today to work on this one again. Got all the plumbing in and filled with coolant, all electrics in and working except for a blown blinker bulb, cables connected, filled oil, instruments fitted, rear frame and mudguard on too. Will buy a new battery tomorrow and see if it starts.
     
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  20. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    1937 Royal Enfield 250, CF Moto 250 V5, Honda's XL250, CBR250, FT500 plus a few others.
    Got a new battery and gave it some fuel from a can suspended from the shed roof. Three winds and it was running. :party:
    Had a bad rattle from the clutch at idle, thought I might have to pull the cover off and see. Went away when clutch lever pulled in and at over 2,000 rpm.
    Got the vacuum gauges hooked up and reset the carbs the same and rattle gone! Must have just been the cylinders fighting each other that was causing the gear teeth to rattle. Next week I hope to get the side and headlight fairings repaired and then some paint.
     
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